Lemma
MediumCurves in space
Gilbert Strang, Calculus, 3rd edition (Wellesley-Cambridge Press; MIT OpenCourseWare RES.18-001) §12.4 Polar Coordinates and Planetary Motion, #16 · Multivariable Calculus · Curves in space

To stay above New York what should be the period of a…

To stay above New York what should be the period of a satellite? What should be its distance from the center of the Earth?

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Gilbert Strang, Calculus, 3rd edition (Wellesley-Cambridge Press; MIT OpenCourseWare RES.18-001) · §12.4 Polar Coordinates and Planetary Motion, #16

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